(I am now in a rush to test as many games as possible to help, so please do not mind the cursory reviewing style.)
controls are QWERTY-only instead of layout-independent
a bit low FPS + laggy: because of Unreal Engine
"enter to join" = ambiguous: not Enter KEY, but really ENTERING!
mechanic: choice of next tile seems totally random, would have added a strategic element to be able to SELECT a tile; nevertheless, probably still a strategic element if players cannot share the same tile (not tested with several players, but I guess this is the case).
link to theme = only randomness, a bit loose
like the printed circuit board floor + glowing and the concept; I think it is funny with several players, although the aforesaid idea of adding strategic choice may help, instead of probably only having everyone mindlessly bash Space.